dilanx / craco

Create React App Configuration Override, an easy and comprehensible configuration layer for Create React App.
https://craco.js.org
Apache License 2.0
7.43k stars 499 forks source link

Creation of jest testing framework, along with basic integration/unit tests #509

Closed stevenewald closed 1 year ago

stevenewald commented 1 year ago

This pull request adds a framework for testing using Jest and Playwright for CRACO. It also includes an example integration test and several basic unit tests to demonstrate how to use the framework. While basic, these tests will fail if basic CRACO functionality fails to execute.

The Jest and Playwright combination provides a powerful testing solution for CRACO, allowing us to test our code from end-to-end and catch any potential issues early on. Additionally, the example unit tests showcase how to write effective unit tests and integrate them into our testing suite.

I have designed the framework around making it painless to add additional tests or modify/run existing ones. For example, setup.js and teardown.js handle individual test installation, package/file management, and compilation, significantly reducing the amount of boilerplate required for additional integration tests.